Longtime political operative Bradley Tusk got his start in Silicon Valley in 2011, when a little-known founder of a transportation startup requested his help surmounting regulatory barriers. That founder, Travis Kalanick, couldn’t afford Tusk’s $25,000 fee, so Tusk agreed to accept half of his payment in equity. As you can imagine, that deal worked out pretty well for Tusk, whose shares in Uber are now said to be worth $100 million.

Tusk (pictured) spent several years advising Uber’s expansion strategy and, in 2015, decided to turn his efforts into a full-fledged business: part venture fund, part political strategy. Today, Tusk and his partner, Jordan Nof, filed paperwork to raise $70 million for their second venture fund, Tusk Venture Partners II.